Home / 81,625.83-112,606.52-54,740.31

Finding the Fourth Proportional to 81,625.83, 112,606.52 and 54,740.31

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Solution

The fourth proportional to 81,625.83, 112,606.52 and 54,740.31 is: 75,516.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,625.83 : 112,606.52 = 54,740.31 : x
  2. Step 2: Convert to fraction form
    81,625.83/112,606.52 = 54,740.31/x
  3. Step 3: Cross multiply
    81,625.83x = 112,606.52 × 54,740.31
  4. Step 4: Simplify right side
    81,625.83x = 6,164,115,539.12
  5. Step 5: Solve for x
    x = 6,164,115,539.12/81,625.83
  6. Step 6: Final answer
    x = 75,516.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.